This is the shortest trip on the site: six days, five nights and only about 350 to 450 miles. Fuel is a small line here, and the park itself is cheap, $35 for a week's vehicle pass plus a $2 booking fee for summer timed entry. The rental and the campsites do most of the work on this bill.
What does a 6-day fly-in RV trip from Denver to Estes Park and Rocky Mountain National Park really cost for two people — once mileage, fuel, campgrounds, fees and the airport transfer are in? Below: every line, for a campervan and a Class C, with a check date and a source.
Quick answer
- Campervan, 6 days, 2 people: about $1,200–$3,600 all-in for US residents, $1,400–$3,800 if you live outside the US [A].
- Class C, 6 days, 2 people: about $1,600–$4,500 (US residents) or $1,800–$4,700 (visitors from outside the US) [A]. Ranges are the table totals rounded outward to the nearest $100.
- Biggest swing factor: timing. Timed entry and campground demand run from late May to mid-October, and Trail Ridge Road is only open in the warmer months [A]. On a short trip, fleet 7-night minimums can make a marketplace vehicle the cheaper choice.
- Not in these totals: flights, food and activities. Groceries for two, cooking mostly in the RV, add roughly $210–$420 [A — our estimate, not checked against a source].
- Prices checked: 2026-10-27; Colorado Road Safety Fee re-checked 2026-10-28.
Cost table (6 days, 2 people)
Low = off-peak, cheapest reasonable choices. High = peak season with every fee — most trips land in between. Ranges are for the whole trip, not per night.
| Item | Campervan | Class C | What drives it |
|---|---|---|---|
| Vehicle rental (base rate) | $600–$1,500 | $900–$2,100 | ≈ $100–250 a night for a campervan, $150–350 for a Class C [A]. Benchmarks: Outdoorsy $100–175 / $150–250 a night; Go RV US average March 2026 $252 / $225. Fleet example: 7-night minimum, so a 6-day fleet rental is billed as 7 nights |
| Mileage (~350–450 mi) | $0–$180 | $0–$180 | $0 if unlimited miles are included (common on marketplace listings); a fleet example charges $0.39 a mile, so ~450 mi ≈ $180. Its unlimited package is $845 for up to 21 days — only worth it on long routes [A] |
| Fuel | $80–$220 | $130–$270 | Campervan 15–20 mpg, Class C 8–12 mpg [A] × route miles × AAA averages on this route checked 2026-10-27: Colorado average $4.44 regular, $6.59 diesel; we add 10% at the high end for mountain stations, and steep grades push you to the low mpg figure [A] |
| Campgrounds (5 nights) | $190–$520 | $190–$520 | Low: park sites — Moraine Park, Glacier Basin, Aspenglen or Timber Creek at $35 in summer ($55 electric where offered) — plus one night near Denver (~$50 [A]). High: Estes Park private RV parks with hookups at ~$100–110 a night [A] |
| Park entry (US residents) | $35–$37 | $35–$37 | $35 for a 7-day vehicle pass. Timed entry (May 22–Oct 12, 2026, 9 a.m.–2 p.m.) adds a $2 Recreation.gov fee |
| Kits, prep, cleaning, generator | $50–$360 | $50–$360 | Low: a marketplace listing with kits included plus a cleaning fee [A]. High: fleet example — $50 prep, $125 vehicle kit, 2 × $75 personal kits, generator $8/night × 5 |
| Insurance / protection | $150–$240 | $180–$300 | RVshare's own budgeting guide: about $25–40 a day for a campervan, $30–50 for a Class C. Fleet rates usually include basic cover; upgrades cost extra [A] |
| Taxes and service fees | $92–$372 | $132–$512 | Low: Denver rental tax 10.75% on the base rate plus the Colorado Road Safety Fee, $5.34 a day for the first 30 nights, so about $32 on the 6 days in this table (Cruise America 2026 notes, checked 2026-10-28). A fleet rental bills at least 7 nights, so there it is about $37, as the calculator’s fleet view shows. We apply the fee to marketplace rentals too, to be safe; a host may show it differently or not at all. High: plus a 10–12% marketplace service fee (Outdoorsy: 10%) [A] |
| Airport ↔ depot transfer (both ways) | $60–$160 | $60–$160 | DEN is far outside the city; taxi or rideshare to a depot, both ways [A — not checked] |
| Total, US residents | $1,257–$3,589 | $1,677–$4,439 | Sum of the lines above [A] |
| Park entry, visitors from outside the US | +$200 low, +$198 high | +$200 low, +$198 high | Rocky Mountain is one of the 11 parks with the $100 per-person non-resident fee (16+) — $235 for two at the gate, replacing the $35 (low) or $37 (high) US entry above. That is $15 less than the $250 Non-Resident Annual Pass, so the totals use the gate price, as the calculator does |
| Total, visitors from outside the US | $1,457–$3,787 | $1,877–$4,637 | Sum including the non-resident park cost [A] |
| Line | Campervan | Class C |
|---|---|---|
| Rental | $600–$1,500 | $900–$2,100 |
| Miles | $0–$180 | $0–$180 |
| Fuel | $80–$220 | $130–$270 |
| Campgrounds | $190–$520 | $190–$520 |
| Park entry | $35–$37 | $35–$37 |
| Kits & fees | $50–$360 | $50–$360 |
| Insurance | $150–$240 | $180–$300 |
| Taxes | $92–$372 | $132–$512 |
| Transfers | $60–$160 | $60–$160 |
Rental, insurance and fee lines are benchmarks from published price guides and a fleet fee sheet, not a live quote for your dates. Get two or three real quotes before you book [A].
Different trip length, group size, season or one-way? Plug your own numbers into the trip cost calculator. It uses the lines above.
Short trip, minimum nights
The fleet fee sheet we used has a 7-night minimum, so a 6-day trip pays for 7 nights there. Many marketplace hosts accept shorter rentals [A]. If you have the time, add a day and use it — or start a longer Colorado loop here.
One-way instead of a loop?
Fleet one-way fees run $350–750 depending on route (Cruise America 2026 terms) [A — confirm for your dates]. For a Denver-only trip, a round trip is simpler and cheaper.
What's included — and what isn't
Included in the totals above
- Vehicle base rate, mileage, fuel, 5 campground nights, park entry, kits/prep/generator, insurance or protection, taxes and service fees, and the transfer between the airport and the depot.
Not included
- Flights, food and groceries (see the quick answer), activities and tours, hotel nights before pickup or after drop-off, refundable security deposits, one-way fees (see below), and late-return or damage charges.
Season notes
Month by month, with temperatures and road seasons: best time to go.
- Timed entry (2026): needed to enter between 9 a.m. and 2 p.m. from May 22 to October 12; the Bear Lake Road corridor needs one from 5 a.m. to 6 p.m. until October 18. Each reservation costs a $2 processing fee. A booking at Aspenglen, Glacier Basin, Moraine Park or Timber Creek includes timed entry from 1 pm on arrival day (NPS, checked 2026-10-28).
- Trail Ridge Road: closed from about mid-October to late May; average winter closure October 23 (NPS, checked 2026-10-28).
- Peak (July–August): top rental rates, full campgrounds, afternoon thunderstorms. Start early.
- Winter: cheaper, but only some campgrounds stay open and high roads close; NPS lists separate winter campsite rates ($30 non-electric, $55 electric).
Sources and how we checked
All figures checked 2026-10-27. Prices change; confirm with the provider before you book.
- NPS — Entrance passes (America the Beautiful: $80 US residents, $250 non-residents; $100 non-resident fee at 11 parks) — www.nps.gov/planyourvisit/passes.htm (checked 2026-10-27)
- NPS — Nonresident fees FAQ — www.nps.gov/aboutus/nonresident-fees.htm (checked 2026-10-27)
- NPS Rocky Mountain — Fees ($35 7-day vehicle pass, $30 1-day) — www.nps.gov/romo/planyourvisit/fees.htm (checked 2026-10-27)
- NPS Rocky Mountain — Timed entry (2026: May 22–Oct 12, 9 a.m.–2 p.m.; $2 Recreation.gov fee) — www.nps.gov/romo/planyourvisit/timed-entry-permit-system.htm (checked 2026-10-27)
- NPS Rocky Mountain — Camping (summer $35 non-electric, $55 electric) — www.nps.gov/romo/planyourvisit/camping.htm (checked 2026-10-27)
- Recreation.gov campground listings (per-site nightly prices: Watchman $35/$45 electric, Zion South $35, Bryce North/Sunset $30, Mather $30, Colter Bay $59/$89, Colter Bay RV Park $122–127, Gros Ventre $59/$89, Mammoth $25, Devils Garden $25, Needles $20, Fruita $25, Timber Creek/Aspenglen/Glacier Basin $35) — www.recreation.gov (checked 2026-10-27)
- AAA state gas price averages (regular and diesel), checked 2026-10-27 — gasprices.aaa.com (checked 2026-10-27)
- Go RV Rentals 2026 RV Rental Price Index via RV PRO (US average March 2026: Class C $225/night, Class B campervan $252/night) — rv-pro.com/news/go-rv-rentals-releases-2026-rv-rental-price-index (checked 2026-10-27)
- Outdoorsy — RV rental costs broken down (Class B $100–175/night, Class C $150–250/night) — www.outdoorsy.com/blog/rv-rental-costs-broken-down-nightly-rates-fees-and-what-to-budget (checked 2026-10-27)
- RVshare — RV rental prices by type (updated Aug 19, 2026; peak season 30–50% more; insurance $25–40/day Class B, $30–50/day Class C) — rvshare.com/blog/rv-rental-prices (checked 2026-10-27)
- Outdoorsy Help Center — fees (guest service fee 10% of booking total) — support.outdoorsy.com/hc/en-us/articles/37981867822747-What-fees-should-I-be-aware-of (checked 2026-10-27)
- Cruise America 2026 summer terms via agent page usandcanadatravel.com (miles $0.39 each or 500-mile pack $155; prep fee $50; vehicle kit $125; personal kit $75/person; generator $8/night; 7-night minimum; local taxes by depot) — www.usandcanadatravel.com/motorhome_hire/cruise_america/rv_rentals_rates_4.shtml (checked 2026-10-27)
- Cruise America one-way chart Nov 2025–Oct 2026 via agent page motorhomeandrvhire.com — motorhomeandrvhire.com/camper_rent/cruise_america/one_way_chart.shtml (checked 2026-10-27)
- Cruise America — Client Essential Notes, departures 2026 (PDF): “Colorado Road Safety Fee” $5.34 per day, Denver (DEN) bookings only, first 30 nights, payable locally — assets.cruiseamerica.com (PDF) (checked 2026-10-28)
- Private RV park rates and airport transfer costs: our estimates [A], not checked against a specific source.
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